Williamson Value property tax analysis

4138 Kingsley Ave, Round Rock, TX 78681

2 bathrooms, 1,595 sqft, built 2017, in G799514C - Mayfield Ranch Appraised at $378,540 for 2026.

Williamson County account 370418

Appraised value
$378,540
Tax year 2026
Market value
$378,540
Living area
1,595 sqft
$237 per sqft
Year built
2017

Why this page matters for a protest

A strong tax protest page needs the county value, property facts, and enough context to compare this home with similar properties nearby. This page gives homeowners a starting point before reviewing comparable homes and prior-year changes.

The county value changed -11.3% from $426,715 in 2025 to $378,540 in 2026.